Injection instrument



Aug. H, 1925.

P. STADLER INJECTION INSTRUMENT File March 23 1925 2 Sheets-Sheet 1 ATTORN EY Aug. 11, 1925.

P. STADLER INJECTION INSTRUMENT Filed March 23 1925 2 Sheets-Sheet 2ATTOR N EY Patented Aug. 11, 1925.

UNITED STATES PAUL STADLER, OF CHICAGO, ILLINOIS.

INJECTION INSTRUMENT.

Application filed March as, 1925. Serial in. 17,848.

To all whom it may concern:

Be it known that I, PAUL STADLER, a citizen of Germany, residing at 312E. 31st Street, Chicago, in the county of Cook and State of Illinois,have invented new and useful Improvements in Injection Instruments, ofwhich the following is a specification.

This invention relates to new and useful improvements in injectioninstruments and more particularly to a device of this character which isadapted to be projected through the air. The main object of my inventionis the provision of an injection instrument adapted to be projectedthrough the air and when brought into contact with an animal or similarobject will penetrate the skin and inject a fluid into the system of theanimal for rendering them temporarily unconscious.

Another object of my invention is an instrument of the above characterwhich is so arranged that when the instrument strikes the body of ananimal the penetrating prongs will be automatically released forengagement with the body of the animal and adapted to penetrate beneaththe skin and at the same time releasing an injection fluid which may bepassed into the system of the animal through the penetrating prongs.

With the above and other objects in View, In invention consists in thenovel features of construction and the combination and arrangement ofparts to be hereinafter more fully described, pointed out in the claimsand shown in the accompanying drawings, in which:

Fig. 1 is an elevation, parts thereof being broken awayand illustratedin section.

Fig. 2 is a'longitudinal sectional View.

Fig. 3 is an elevation showing the use of the device.

Fig. 4 is a detail section dn the line 4-4 of Fig. 1.

In carrying out my invention I provide a casing 1 having a removablecover 2 and a socket 3 at one end adapted to receive the stem 4 whichhas on its outer end a recessed head 5 adapted to engage with the stringof a bow or similar instrument for projecting the casing 1 through theair.

The casing in the present instance is oval shaped in form and providedwith an opening 6 at the end opposite the socket 3 through which thereciprocating arm 7 extends and which is provided with a striking head 8at its outer end. This arm 7 is preferably arranged centrally of thecasing adjacent I the back wall thereof and formed integral with thecasing upon opposite sides of the arm 7 are the spaced ears 9 supportingthe bolt 10 upon which are mountedfor rocking movement the arcuateshaped penetrating prongs 11 having points 12 at their outer ends. Theseprongs 11' are provided with a central duct 13 which communicate withthe threaded nipple 14 at the inner ends of the prongs and to which areattached the connecting tubes 15 formed of flexiblematerial. The innerends of the prongs 11 are mounted in the transverse openings 16 formedtransversely in the enlarged central portions 17 of the bolts 10 andretained in this position by means of the nuts 18 which are threadedonto the nipple 14.

The bolts 10 areprovided with rectangular portions 19 upon which aremounted the trigger arms 20 which are arranged within the casing 1 andhave hooks 21 at their inner ends for engagement with the catches 22carried by the arm 7. The trigger arms 20 have attached thereto suitablesprings 23, said springs being connected to the interior wall of thecasing 1 as at 24 for actuating said trigger arms when released from thecatches 22.

The trigger arms 20 carry the headed pins 25 which move in the arcuateslots 26 formed in one wall of the casing 1 for guiding the trigger armsin their movement.

From the above it will be apparent that when the device is projectedthrough the air and the head 8 comes in contact with the I animal asshown in Fig. 3, the arm 7 may be forced inwardly against the tension ofthe spring 27, disengaging the 'ca tches 22 from the hook members 21 sothat the tension of the coil springs 23 will rock the trigger arms 20rotating the bolts 10 and thus move the penetrating prongs 12 towardeach other so that they engage and penetrate the body of the animal asshownin Fig. 3. When this operation takes place the liquid is dischargedthrough the duct 13 into the system of the animal, the liquid beingautomatically discharged as will be now fully set forth.

The tubes 15 are connected to the cross pieces 28 of the funnel 29, saidfunnel having extending into its upper end a pipe 30 which leads fromthe supply receptacle 31 which contains the fluid for injection into theanimal.

.may be readily adjusted by means of the nut 37 carried by the sleeve 34and engaged with the guide 35.

The end of the guide 35 opposite that which is mounted upon the sleeve34 is mounted upo n the threaded sleeve 38 and also has an opening 39 toreceive the" guide rod 40 to prevent any turning movement of the guide35 relative to the sleeves 34 and WVhen the arm 7 is reciprocatedagainst the tension of the spring 27 the valve 41 which controls theoutlet of fluid from the receptacle 31 is actuated by means of the pin42 which is carried by the arm and en- "ages the handle 43 on the valve41 as is illustrated in Fig. 2. This movement opens the valve 41 and.allows some of the liquid from the receptacle 31 to pass downwardlythrough the ducts 13 and into the system of the animal when the prongs11 have penetrated the body of the animal as shown in Fig. 3.

It will be understood that the liquid used in connection with thisdevice is preferably of such type as will render the animal temporarilyunconscious so that this device will be extremely valuable in use forcatching animals where it is desired that they be notinjured and areespecially caught for captivity. It will be noted that this device willalso be extremely useful in catching wild animals for captivity forzoological parks and the like.

While I have shown and described the preferred form of my invention, itwill be obvious that various changes in the details of construction andin the proportions may be resorted to for successively carryin myinvention into practice without sacrificing any of the novel features ordeparting from the scope of the appended claims.

Having thus described my invention, what I claim is:

1. A device ofthe character described including a supporting body, areciprocating arm, movable penetrating prongs upon each side thereof,means carried-by the arm for normally retaining said pron s in aseparated position, means actuated by'said arm when the arm engages anobject for releasing said prongs and additional means for moving saidrongs toward each other upon the re case 0 the retaining means.

moving said prongs toward each other upon I the release of the retainingmeans, said prongs having a duct therethrough and means automaticallyoperated through the movement of said arms upon releasing said prongsfor supplying a fluid to said ducts.

3. A device of thecharacter described including a carrying body, areciprocating arm supported thereby, catch members carried by said arm,penetrating prongs pivotally mounted upon the body upon opposite sidesof the arm, said pron s each having a duct therethrough, means fiavingoperative connection with the prongs and engaging said catch members fornormally retaining said prongs in a spreading position, said catchesbeing released upon the movement of the arm in one direction, springmembers carried by the .body, cooperating with the prongs for movingthem toward each other upon being released and means automaticallyoperated through'the movement of said arms for releasing the prongsto'supply a fluid to said ducts.

4. A device of the character described including a carrying body, areciprocating arm supported thereby, pivoted prongs on the body uponopposite sides of the arm, cooperative means between the prongs and armfor operatively retaining the prongs in a spreading position, said meansbeing released upon the movement of the arm in one direction andspreading members having connections between the body and said prongswhereby to move the prongs toward each other upon the release of theretaining means.

5. A device of the character described including a reciprocating arm,pivoted penetrating prongs upon each side thereof, cooperative meansbetween the prongs and arm for retaining the prongs in a spreadingposition, said means being released upon the movement of the arms in onedirection, means for moving said prongs toward each other upon therelease of the retaining means, said prongs having ducts therethrough, aliquid supply chamber adjacent the arm, means forming communicationbetween the supply chamber and ducts and means for automaticallyreleasing a supply oi the liquid to said ducts upon the movement of thearm for releasing said prongs.

in testimony whereof I atfix my signature.

PAUL STADLEB.

